77007527693 has 2 divisors, whose sum is σ = 77007527694. Its totient is φ = 77007527692.

The previous prime is 77007527651. The next prime is 77007527761. The reversal of 77007527693 is 39672570077.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63833538409 + 13173989284 = 252653^2 + 114778^2 .

It is a cyclic number.

It is not a de Polignac number, because 77007527693 - 2¹⁰ = 77007526669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77007527603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38503763846 + 38503763847.

It is an arithmetic number, because the mean of its divisors is an integer number (38503763847).

Almost surely, 2^77007527693 is an apocalyptic number.

It is an amenable number.

77007527693 is a deficient number, since it is larger than the sum of its proper divisors (1).

77007527693 is an equidigital number, since it uses as much as digits as its factorization.

77007527693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3889620, while the sum is 53.

The spelling of 77007527693 in words is "seventy-seven billion, seven million, five hundred twenty-seven thousand, six hundred ninety-three".